Basic Properties of Parallelograms

Front

In a parallelogram, the diagonals are __________.

Back

bisected

Front

If ABCD is a parallelogram, what can be said about opposite sides?

Back

Opposite sides are congruent.

Front

If ABCD is a parallelogram, what can be said about opposite angles?

Back

Opposite angles are congruent.

Front

In a parallelogram, the sum of the measures of consecutive angles is __________.

Back

180 degrees.

Front

If the diagonals of a parallelogram bisect each other, what property does this illustrate?

Back

Diagonals bisect each other.

Front

If one angle of a parallelogram measures 70 degrees, what is the measure of the opposite angle?

Back

70 degrees.

Front

If one angle of a parallelogram measures 70 degrees, what is the measure of the consecutive angle?

Back

110 degrees.

Front

In a parallelogram, if one pair of opposite sides is parallel and congruent, what can be concluded?

Back

The figure is a parallelogram.

Front

If the lengths of the diagonals of a parallelogram are equal, what can be said about the parallelogram?

Back

It is a rectangle.

Front

If ABCD is a parallelogram, what is the relationship between the lengths of the diagonals?

Back

The diagonals bisect each other.